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Astrophysics and Space Science

, Volume 328, Issue 1–2, pp 91–96 | Cite as

CoRoT 102931335: a candidate γ Dor in an eclipsing binary

  • C. DamianiEmail author
  • C. Maceroni
  • D. Cardini
  • J. Debosscher
  • L. Balaguer-Núñez
  • I. Ribas
Original Article

Abstract

We present an on-going study of CoRoT 102931335. Our preliminary results indicate that the target is an eclipsing binary system with an orbital period of \(3{.\!\!\vphantom{0}^{\mathrm{d}}}979\) and a primary component pulsating in the frequency range 0.6–0.8 c/d. The results of a ground-based follow-up program provided four-colour Strömgren photometry and allowed us to infer the spectral class and the primary effective temperature. We devised and applied an iterative procedure to disentangle the effects of binarity from those of pulsations and could test that a detailed binary modelling is essential for the purpose. Our results suggest that the pulsating component of CoRoT 102931335 could be a γ Dor variable, a rare occurrence in an eclipsing system.

Keywords

Binary stars γ Dor variables 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • C. Damiani
    • 1
    Email author
  • C. Maceroni
    • 1
  • D. Cardini
    • 2
  • J. Debosscher
    • 3
  • L. Balaguer-Núñez
    • 4
  • I. Ribas
    • 5
  1. 1.INAF-Osservatorio Astronomico di RomaMonteporzio CItaly
  2. 2.IASF-Roma, INAFRomaItaly
  3. 3.Institute of Astronomy, K.U.LeuvenLeuvenBelgium
  4. 4.Departament d’Astronomia i Meteorologia-ICC-IEECUniversitat de BarcelonaBarcelonaSpain
  5. 5.Campus UAB, Facultat de CiènciesInstitut de Ciències de l’Espai (CSIC-IEEC)BellaterraSpain

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